Question

When a body rolls up without sliding up an inclined plane, the frictional force is

• A. Directed up the plane
• B. Directed down the plane
• C. Zero
• D. Dependent on its velocity

Answer 1

The correct option is A Directed up the plane

For pure rolling, $\omega$ should decrease to maintain the relation $(V=R\omega )$ where $V$ reduces due to gravity.So, friction acts upwards to provide counter torque.